EVGA Z490 DARK (131-CL-E499)
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22. USB 3.2 Gen1 Header
The USB 3.2 Gen1 header is used to connect additional USB interface plugs to
the motherboard; these headers are most often used to connect the
motherboard to the chassis to enable the USB 3.2 Gen1 ports on the chassis.
These will function similarly to the USB 3.2 Gen1 ports found on the
motherboard’s rear I/O hub, but can also be used for the chassis’ front panel
USB, auxiliary ports that mount in the card slots, and certain devices that
directly connect to the header.
USB 3.2 Gen1 standard is 900ma @ 5V for unpowered devices. If your USB
device requires more power, it is recommended to attach a powered USB Hub.
USB 3.2 Gen2 Type-A (found on the I/O Hub) shares the power limit of USB
3.2 Gen1 at 900ma @ 5V.
Note: USB 3.2 Gen1 is more commonly referred to as USB 3.0.
23. USB 3.2 Gen2 Type-C Header
The USB 3.2 Gen2 header is used to connect additional USB interface plugs to
the motherboard; these headers are most often used to connect the
motherboard to the chassis to enable the USB 3.2 Gen2 ports on the chassis.
These will function similarly to the USB 3.2 Gen2 Type-C port sometimes
found on a motherboard’s rear I/O hub, but can also be used for the chassis’
front panel USB, auxiliary ports that mount in the card slots, and certain
devices that directly connect to the header. The USB 3.2 Gen2 Header on the
Z490 DARK is a shielded USB 3.2 Gen2 Header and supports up to 10Gb/s
with USB 3.2 Gen2.
This USB 3.2 Gen2 Header has a power limit of 3000ma (3A) @ 5V.
24. USB 2.0 Headers
The USB2.0 header is used to connect additional USB interface plugs to the
motherboard; these headers are most often used to connect the motherboard to
the chassis to enable the USB2.0 ports on the chassis. These will function the
same as the USB2 ports found on the motherboard’s hardwired I/O hub, but
these can be used to attach to front panel USB, auxiliary ports that mount in the
card slots, and also some devices that directly connect to the header.
USB 2.0 standard is 500mA @ 5V per port (header total is 1000mA) for
unpowered devices. If your USB device requires more power than this, it is
recommended to attach a powered USB Hub.